Originally Posted by VIPStephan
Iím not saying that this couldnít be useful at times but itís not the norm for the average website.
You're absolutely right about that. I am just using it for a specific application. In my online store (where we sell t shirts) I have a link in all the shirt descriptions that links to a sizing chart. It just made more sense to have this pop up because the user would just take a single quick glance to figure out what size they want and not look at it anymore.